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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1948 | 1 |
| 1956 | 5 |
| 1957 | 15 |
| 1958 | 16 |
| 1959 | 10 |
| 1960 | 12 |
| 1961 | 22 |
| 1962 | 5 |
| 1965 | 11 |
| 1966 | 32 |
| 1967 | 46 |
| 1968 | 44 |
| 1969 | 39 |
| 1970 | 63 |
| 1971 | 49 |
| 1972 | 65 |
| 1973 | 69 |
| 1974 | 61 |
| 1975 | 67 |
| 1976 | 48 |
| 1977 | 60 |
| 1978 | 44 |
| 1979 | 72 |
| 1980 | 66 |
| 1981 | 60 |
| 1982 | 58 |
| 1983 | 50 |
| 1984 | 70 |
| 1985 | 69 |
| 1986 | 80 |
| 1987 | 87 |
| 1988 | 109 |
| 1989 | 126 |
| 1990 | 116 |
| 1991 | 106 |
| 1992 | 150 |
| 1993 | 159 |
| 1994 | 179 |
| 1995 | 197 |
| 1996 | 183 |
| 1997 | 166 |
| 1998 | 192 |
| 1999 | 229 |
| 2000 | 232 |
| 2001 | 270 |
| 2002 | 263 |
| 2003 | 301 |
| 2004 | 300 |
| 2005 | 323 |
| 2006 | 327 |
| 2007 | 362 |
| 2008 | 396 |
| 2009 | 390 |
| 2010 | 379 |
| 2011 | 423 |
| 2012 | 385 |
| 2013 | 389 |
| 2014 | 435 |
| 2015 | 445 |
| 2016 | 447 |
| 2017 | 424 |
| 2018 | 381 |
| 2019 | 373 |
| 2020 | 421 |
| 2021 | 426 |
| 2022 | 382 |
| 2023 | 351 |
| 2024 | 354 |
| 2025 | 192 |